Reproduction

Question 1

Where does external fertilisation occur?

Answer 1

It occurs outside the female.

Question 2

How does external fertilisation occur?

Answer 2

The male releases sperm as the female releases her eggs in the water.

Question 3

Where does internal fertilisation occur?

Answer 3

It occurs inside the female.

Question 4

How does internal fertilisation occur?

Answer 4

The male ejaculates a fluid called semen containing sperm into the female.

Question 5

What is the function of the testes?

Answer 5

To produce the male sex cells.

Question 6

What is the function of the scrotum?

Answer 6

To hold and support the testes.

Question 7

What is the function of the epididymis?

Answer 7

To store the male sex cells.

Question 8

What is the function of the sperm duct?

Answer 8

To transport sperm from the testes to the penis.

Question 9

What is the function of the prostate gland and the seminal vesicle?

Answer 9

To add fluid to the sperm to create semen.

Question 10

What is the function of the urethra?

Answer 10

Semen leaves the penis through the urethra.

Question 11

What are the functions of the penis?

Answer 11

Firstly, to pass urine out of the man’s body. Secondly, to pass semen into the woman’s vagina.

Question 12

What is the function of the vulva?

Answer 12

This is the outermost part of the female reproductive system where the urethra is found.

Question 13

What is the function of the vagina?

Answer 13

This is a muscular tube which that leads from the cervix to the outside of the woman’s body.

Question 14

What is the function of the cervix?

Answer 14

To keep the baby in place while the woman is pregnant.

Question 15

What is the function of the womb/uterus?

Answer 15

This is where the zygote is developed.

Question 16

What is the function of the oviduct?

Answer 16

It is a tube through which an egg passes from an ovary.

Question 17

What is the function of the ovary?

Answer 17

This is where the unfertilised eggs are stored.

Question 18

What is the menstrual cycle?

Answer 18

The process in which the uterus lining thickens to receive a fertilised egg.

Question 19

How long does the menstrual cycle last?

Answer 19

28-35 days.

Question 20

For how long is the uterus’ lining shed?

Answer 20

It is shed for the first six days.

Question 21

For how long does ovulation occur?

Answer 21

For three days (around the 13th day to the 16th day).

Question 22

For how long does the womb lining continue to thicken?

Answer 22

From around the 16th day to the last day.

Question 23

What is fertilisation?

Answer 23

The fusing of the male gamete and the female gamete to form a zygote.

Question 24

What is a zygote?

Answer 24

A zygote is a fertilised egg.

Question 25

What are the stages of labour?

Answer 25

1. The muscular uterus walls begin to contract. 2. The contractions become stronger and the cervix starts to relax. 3. At some stage the amnion breaks and the fluid comes out of the vagina. 4. Once the cervix is 10cm dilated, the strong contractions begin to push the baby out. 5. The baby comes out head first and the umbilical cord is tied and cut.

Question 26

What is the function of the sepals?

Answer 26

To protect the flower when it is in bud.

Question 27

What is the function of the petals?

Answer 27

These are colourful to attract insects.

Question 28

What is the function of the nectaries?

Answer 28

To give out sugary liquid to attract insects.

Question 29

What is the function of the stigma?

Answer 29

To trap pollen.

Question 30

What is the function of the style?

Answer 30

This is where the pollen tube grows down to the female sex cells.

Question 31

What is the function of the ovary?

Answer 31

To produce the female gametes.

Question 32

What is the function of the anther?

Answer 32

To produce the male gametes.

Question 33

What is the function of the filament?

Answer 33

To support the anther.

Question 34

What is pollination?

Answer 34

This is the transfer of pollen from the anther to the stigma.

Question 35

What can pollination be transferred by?

Answer 35

Insects, wind and water.

Question 36

How many ways can pollination occur? What are they?

Answer 36

Pollination can occur by using self-pollination and cross-pollination.

Question 37

Why is cross-pollination more favourable than self-pollination?

Answer 37

It is more favourable because it is more resistant to disease.

Question 38

What is a seed?

Answer 38

A matured fertilised ovule of a plant.

Question 39

What is a cotyledon?

Answer 39

The food store of a seed.

Question 40

What is another word for the embryo shoot?

Answer 40

Plumule.

Question 41

What is another word for the embryo root?

Answer 41

Radicle.

Question 42

What is germination?

Answer 42

The process by which a plant grows from a seed.

Question 43

What does a seed need to grow?

Answer 43

Oxygen, warmth and moisture.